Results 41 to 50 of about 26,912 (125)

Clinical Features, Management, and Molecular Characteristics of Familial Small Bowel Neuroendocrine Tumors

open access: yesFrontiers in Endocrinology, 2021
Small bowel neuroendocrine tumors are rare tumors with an increasing incidence over the last several decades. Early detection remains challenging because patients commonly develop symptoms late in the disease course, often after the tumors have ...
James Y. Lim, Rodney F. Pommier
doaj   +1 more source

Expression of a neuroendocrine gene signature in gastric tumor cells from CEA 424-SV40 large T antigen-transgenic mice depends on SV40 large T antigen. [PDF]

open access: yesPLoS ONE, 2012
BackgroundA large fraction of murine tumors induced by transgenic expression of SV40 large T antigen (SV40 TAg) exhibits a neuroendocrine phenotype. It is unclear whether SV40 TAg induces the neuroendocrine phenotype by preferential transformation of ...
Fritz Ihler   +7 more
doaj   +1 more source

Elastic free energy drives the shape of prevascular solid tumors [PDF]

open access: yes, 2014
It is well established that the mechanical environment influences cell functions in health and disease. Here, we address how the mechanical environment influences tumor growth, in particular, the shape of solid tumors. In an in vitro tumor model, which isolates mechanical interactions between tumor cells and a hydrogel, we find that tumors grow as ...
arxiv   +1 more source

Tumor growth with nutrients: stability of the tumor patches [PDF]

open access: yesarXiv, 2022
In this paper, we study a tumor growth model with nutrients. The contact inhibition for the tumor cells, presented in the model, results in the evolution of a congested tumor patch. We study the regularity of the tumor patch as the nutrients' diffusion strength $D$ diminishes.
arxiv  

WHO Grade 2 Neuroendocrine Tumor in a 15-Year-Old Male: A Case Report and Literature Review

open access: yesCase Reports in Pathology, 2014
Neuroendocrine tumors, distinguished from adenocarcinomas by their neuroendocrine differentiation, are the most common pediatric epithelial malignancy that most often occurs in the appendix. In 2010, the WHO classified neuroendocrine neoplasms into three
Eric Johannesen, Van Nguyen
doaj   +1 more source

The architecture of co-culture spheroids regulates tumor invasion within a 3D extracellular matrix [PDF]

open access: yesarXiv, 2020
Tumor invasion, the process by which tumor cells break away from their primary tumor and gain access to vascular systems, is an important step in cancer metastasis. Most current 3D tumor invasion assays consisted of single tumor cells embedded within an extracellular matrix (ECM). These assays taught us much of what we know today on how key biophysical
arxiv  

Neuroendocrine tumors (carcinoids) of the stomach and intestines - early diagnosis and minimally invasive endoscopic procedures [PDF]

open access: yesМорфологія, 2014
Background. Neuroendocrine tumors of the stomach and intestines are rare diseases. Increasing incidence and complexity of diagnosis of these diseases cause acuteness of the problem. Objective. To evaluate the effectiveness of morphological examination of
Kuryk O.G.   +3 more
doaj  

Rigorous results of limiting behaviors of total tumor size under cyclic intermittent therapy for the system of reversible phenotype-switchable tumor cells [PDF]

open access: yesarXiv, 2023
We are keenly interested in finding the limiting behaviors of total tumor size when tumor cells are subject to the periodic repetition of therapy and rest periods, called intermittent cyclic therapy. We hypothesize that each tumor cell can take either therapy-sensitive or therapy-tolerant phenotype, its phenotype transition is mainly driven by the ...
arxiv  

A Brand-new Research Method of Neuroendocrine System [PDF]

open access: yesarXiv, 2007
In this paper, we present the empirical investigation results on the neuroendocrine system by bipartite graphs. This neuroendocrine network model can describe the structural characteristic of neuroendocrine system. The act degree distribution and cumulate act degree distribution show so-called shifted power law-SPL function forms.
arxiv  

Endoscopic ultrasound (EUS) in differential diagnosis of neuroendocrine tumors of the gastrointestinal tract

open access: yesPerioperative Medicine
. Neuroendocrine tumors are rare tumors of the gastrointestinal tract. The differential diagnosis of neuroendocrine tumors remains poorly understood. Objective.
V Yakovenko
doaj   +1 more source

Home - About - Disclaimer - Privacy